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Finding the Fourth Proportional to 611,836.00, 844,239.95 and 339,878.90

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Solution

The fourth proportional to 611,836.00, 844,239.95 and 339,878.90 is: 468,980.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,836.00 : 844,239.95 = 339,878.90 : x
  2. Step 2: Convert to fraction form
    611,836.00/844,239.95 = 339,878.90/x
  3. Step 3: Cross multiply
    611,836.00x = 844,239.95 × 339,878.90
  4. Step 4: Simplify right side
    611,836.00x = 286,939,347,227.81
  5. Step 5: Solve for x
    x = 286,939,347,227.81/611,836.00
  6. Step 6: Final answer
    x = 468,980.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.